NDA (National Defence Academy) Mathematics: Questions 84 - 89 of 384

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Question number: 84

» Matrices and Determinants » Basic Properties of Determinant

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Appeared in Year: 2012

MCQ▾

Question

Consider the following statement:

Every Zero matrix is a square matrix.

A matrix has numerical value.

A unit matrix is a diagonal matrix.

Which of the above statement is/are correct?

Choices

Choice (4) Response

a.

Only

b.

Only

c.

d.

Question number: 85

» Algebra » Complex Numbers » Basic Properties

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Appeared in Year: 2016

MCQ▾

Question

If is a complex number, then which one of the following is correct?

Choices

Choice (4) Response

a.

b.

c.

d.

Question number: 86

» Statistics and Probability » Union and Intersection of Events

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MCQ▾

Question

Out of first year students, passes in first semester and passed in the second semester. If did not pass in either semester, how many passed in both semesters?

Choices

Choice (4) Response

a.

200

b.

100

c.

120

d.

110

Question number: 87

» Algebra » Complex Numbers » Modulus

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Appeared in Year: 1960

MCQ▾

Question

If Where, , then what is the value of ?

Choices

Choice (4) Response

a.

b.

0

c.

1

d.

Question number: 88

» Algebra » Arithmetic Progression

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MCQ▾

Question

The sixth term of an is and it’s common difference is greater than What is the common difference of the , so that the product of the second, fifth and six terms is greatest?

Choices

Choice (4) Response

a.

0

b.

c.

d.

Question number: 89

» Analytical Geometry of Two and Three Dimensions » Rectangular Cartesian Coordinate System

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MCQ▾

Question

What is perimeter of the triangle with vertices and ?

Choices

Choice (4) Response

a.

b.

c.

d.